This presentation examines instances of elementary algorithmic thinking and musical examples that bear the same principles. A particular focus is given to the function of algorithmic thinking as a performative skill in action. The presentation takes as its background that the application of the procedural logic of algorithm has a long history in music, and that examples can be found in many types of music-making as activities. While much of this application is already discussed in the discipline of musical composition, I observe that the significant presence of algorithmic thinking in performance is still to be articulated. In the three sections titled ‘affordance’, ‘combinatoriality’, and ‘sequence’, I examine each concept in algorithmic operations, and how the same principle can be observed in musical practices. These three sections provide reflection on the nature of the processes involved in music-making. They also simultaneously argue that contemporary musicians possess the capacity to process necessary information and tasks algorithmically, consciously or not.